Phase Diagram of the Shastry-Sutherland Kondo Lattice Model with Classical Localized Spins: A Variational Calculation Study
arXiv:1701.04979 · doi:10.1088/1361-648X/aa73bb
Abstract
We study the Kondo lattice Shastry-Sutherland model with additional Dzyaloshinskii-Moriya(DM) interactions, exploring the possible magnetic phases in its multi-dimensional parameter space. Treating the local moments as classical spins and using a variational ansatz, we identify the parameter ranges over which various common magnetic orderings are potentially stabilized. Our results reveal that the competing interactions result in a heightened susceptibility towards a wide range of spin configurations including longitudinal ferromagnetic and antiferromagnetic order, coplanar flux configurations and most interestingly, multiple non-coplanar configurations including a novel canted-Flux state as the different Hamiltonian parameters like electron density, interaction strengths and degree of frustration are varied.
11 pages, 4 figures
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Cited by in corpus (6)
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- Controlling unconventional superconductivity in artificially engineered -electron Kondo superlattices
- The topological magnon bands in the Flux state in Sashtry-Sutherland lattice
- Topological Hall effect in the Shastry-Sutherland lattice
- Topological excitations in quasi two-dimensional quantum magnets with weak interlayer interactions
- Field-tunable quadruple- states driven by momentum-space frustration